proj4_04.cpp

来自「C++程序设计教程的全部源代码 包含与教程同步的PPT 方便学习」· C++ 代码 · 共 17 行

#include <iostream.h>
int add(int a, int b)
{
	int iRet = 0;
	iRet = a + b;
	a = 100; //改变形参的值
	b = 200;
	return iRet;
}
void main()
{
	int num1 = 10, num2 = 20;
	cout << add(num1 , num2) << endl;
	cout << "num1 = " <<num1 <<endl;
	cout << "num2 = " <<num2 <<endl;
}